Yes, they do.. That is their entire purpose.  The
support EVERYTHING on a single connector (most of
the time you don't need to set the id, or anything).

These drives are MADE for RAID.. And you pay for it.

-- Rob

--- Mitch Miller <mdmiller2@HOME.COM> wrote:
> I don't think, however, that the SCA connector implements power.  So
> ... you
> still have to connect power ahead of the bus.
>
> --Mitch
>
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Brandon, Tom
> Sent: Tuesday, February 13, 2001 7:24 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [OT]: PICList.com up after Hard Drive reformat
>
>
> You might like to have a chat with Adaptec about that:
> <BLOCKQUOTE>
> Q: Does the AHA-3950U2 support hot swap of SCSI devices?
>
> A: No, not for devices directly connected on the SCSI cable. Hot swap
> is a
> function of the device enclosure. Specific enclosure design is
> required to
> ensure that power is removed from the SCSI device and the device
> isolated
> from the bus before it is removed. Power surges or bus lockup will
> occur if
> a device connected directly to a cable is removed or connected while
> the
> system is functional.
> </BLOCKQUOTE>
>
> The "Hot swappable" drives I was referring to are SCA drives. SCA
> refers to
> Single Connector Attach. From what I can tell, SCA means that the
> last
> device on the bus will automatically terminate. Sorry, I'd had SCA
> described
> as hot swappable by our supplier when they're not quite the same.
>
> Tom.
> -----Original Message-----
> From: David VanHorn [mailto:dvanhorn@CEDAR.NET]
> Sent: Wednesday, February 14, 2001 11:47 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [OT]: PICList.com up after Hard Drive reformat
>
>
> At 11:53 AM 2/14/01 +1100, Brandon, Tom wrote:
> >To be replaceable without a shutdown you need a RAID\SCSI card
> that's
> >supports Hot swap (I think only RAID and REAL expensive SCSI would
> support
> >this), drives that support Hot swap and drive bays for hot swap.
> Here in
> >Australia, it was about AU$20 extra on an 18.2Gb SCSI to get Hot
> swap but
> >the drive bays were about AU$250 (about 1\2 the price of the drives
> but
> >SCSI's quite expensive here) each so overall it was quite expensive.
>
> All scsi devices and cards are hot-swap. SCSI is natively hot-swap.
> There are caveats, like you have to be running raid, or make sure the
> drive
> is dismounted.
>
>
> --
> Dave's Engineering Page: http://www.dvanhorn.org
> Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
>


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